Improvement in door-frames and jamb-plates for furnaces



J. C. 'LONGLANDl :Doon-FRAMES AND JAM-PLATES Fon FUnNAcsvs.

Paten-tea Feb. 1 187e;

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1 manana n. PETERS. PHOTO-UTNORAPHER. WASHINGTON door-frame.

NITED /STATES PATENT OFFICE.

JAMES C. LONGLAND, OF ROME, NEW YORK.

'IMPR'QVEMENT IN-DooR-FRAMES AND JAMB-PLATES FoRFuRNAcEs.

Specification forming part of Letters Patent No. 173,028, dated February1, 1876; application tiled v June 26, 1875.

To all whom it may concern:

Be it known Vthat I, JAMES G. LONGLAND,

of Rome, in thecounty of Oneida and State of New York, have invented anew and Improved Wrought-Iron Water Door-Frame and J amb-Plate, of whichthe following is a speciication:

The invention will rst be described in connection with drawing, and thenpointed out in the claims.

Hitherto door-frames and jamb-plates for.

' one. This breakage and burning out often occur within a week, and thecast-iron doorframe seldom lasts more' than six weeks or two months;hence the necessity for improvement in the material used.`

Jamb-,plates are usually made of cast-iron and cooled by the action ofblast supplied by a blower. Plates thus constructed and cooled are ofshort duration, and when once burnt out are a cause of great expense, asthe brick jamb of the furnace is supported by the jambplate, and whenonce the jamb-plate is de stroyed the brick jamb loses its' foundationand falls into the furnace, causing a great out- ,l lay of time andmaterial, which, byv my wrought-iron water-jamb, will be saved.

Figure 1 is a front elevation of my improved Fig. 2 is a sectionalelevation on line a' w of Fig. 1. Fig. 3 is a horizontal section "online y y. Fig. 4 is a vertical section through one of the packing-jointsfor the water-passage. Fig. 5 is a top view of the jambplate. Fig. 6 isa transverse section of Fig. 5 on line z a.

Similar letters of reference indicate correspending parts.

A is the bottom plate, of wrought-iron, be-l ing forged into one solidpiece, having a chamber, A', cut out from the -outer or front edge, forwater-passage. B shows the front plate or cover to said water-passage,secured to the plate A by screw-bolts, and being tongued and grooved tomake Water-tight joints, as described in my Patent No. 161,135, forWater-boshes. O C show the side posts or doorjambs, which are made ofone solid piece of wrought-iron, through which a hole, C', is drilledlengthwise, and which are connected with and fastened to the plate A bya screwthread, d, cut upon the end thereof, closely fitting acorresponding thread cut into said plate A, to makeWater-tight joints.yThe low- ,er and upper ends are to be, in practice, jointed by grooveand tongue, for packing. The upper ends of posts have close-littingtenons c, without screws, which enter sockets formed .in top plate D,and to be packed, as shown in Fig. 4. D shows the top plate, also ofsolid wrought-iron, into which is cut a chamber or water-reservoir, G,which is connected with one of the posts' by a passage, F, therebycausing a constant circulation of water. E E show the form of socket forreceiving the end of posts at top and bottom thereof, in order to securewater-tight joints. His the cover of reservoir, which is secured to theplate D by screw-bolts, and tongues and grooves formed on the inner edgeof the reservoir, so as not to be cut by the bolts. Through this coverpasses the inlet-pipe J, and the outlet-pipe I. KKrepresent keys, whichpass in at one side of plate D,into seats in the posts C G, thence intothe opposite side of plate D, thereby securely join-j ing plate D toposts O G. P P represent guards to keep the door of the furnace in itsplace. R

R represent outside flanges, by means of which l thel door-frame isfastened to furnace. f represents screw-plugs, stopping holes throughwhich the water is drawn to clean out; also to preventfreezin g, whenfurnace is not working in cold weather. made of solid wrought-Romandis'cut out from the bottom up to make a water-chamber,

and made to be water-tight, with a bottom plate, T, by means of tonguesand grooves,4

same as the plates A and D of-door-fram'e. The ends of jamb-plate arebeveled, so as to make them lit7 the one to the side of fur- Thejamb-plate S is alsonace and door-frame, and the other to myWater-bridge bosh, thereby forming a complete Water circulation allaround the furnace.

The passage of the Water is as follows: Entering in at the pipe J intothe reservoir G, it goes down the right-hand post C into and through theplate A, up the other post C, going through` the sockets E, anddischarging through the outlet-pipe I; thence into my bridge-bosh,forming a complete circulation of the furnace, and nally dischargingitself into the tool-bosh, for the purpose of cooling puddlers tools.

Having thus described myiuvention, I claim

